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HTTP Status Code Reference

Search and browse every standard HTTP status code by class, with its name and a one-line description.

Related tools

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HTTP Status Code Reference works straight from this page — free, instant, nothing to install. Its place is under Web & network; ASCII code converter and Morse code translator answer the questions closest to this one.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What does HTTP Status Code Reference do?

Search and browse every standard HTTP status code by class, with its name and a one-line description.

When would I actually use this?

Getting usable data out of something that was never meant to be parsed: pulling every address out of a pasted thread, turning a column of lines into a JSON array or an SQL IN clause, renaming a hundred identifiers from snake_case to camelCase in one pass.

What is the most common mistake?

Trusting an extraction to be exhaustive. A pattern that catches every address in the sample will still miss the one wrapped across a line break, the one written with a display name, and the one an email client turned into a link — count what came out against what you expected before you use the list.

How is HTTP Status Code Reference different from ASCII code converter?

They sit next to each other but answer different questions: ASCII code converter is the one to open when you need it to convert text to ASCII/Unicode code points and back. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

Morse code translator is the closest one after this: Translate text to Morse code and back. Letters, digits and punctuation round-trip exactly; a word gap is written “/”. Takes a whole file, so a long log does not have to go through the clipboard.

What else is worth having open alongside it?

Flip Image and My IP address — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

Extraction runs on patterns, not on a parser: it recognises the common shapes of an address, a URL or an IP rather than validating them against their specification. That is the right trade for a paste, and the wrong one for input you are about to store.

Further reading

All guides →
GuideHTTP Status Codes Explained: The Ones That Actually Get Confused301 against 308, 302 against 307, 401 against 403, 404 against 410 — plus what Retry-After on a 429 or a 503 actually promises. The pairs where picking the wrong code changes behaviour, not just wording.How-toHow to Write a Cron Expression: Five Fields and the OR Rule Nobody MentionsMinute, hour, day of month, month, day of week. The traps are that a step is a stride through a range and not an interval, and that the two day fields are combined with OR — so 0 0 1 * 1 fires on the 1st and on every Monday.ExplainerWhat Is a QR Code?A QR code is a 2D barcode a camera reads to open a link or text. Here's what it is, why it holds so much, its anatomy, and a safety note on scanning.ExplainerHow Subnet Masks Work: CIDR, Network Bits, and Usable HostsUnderstand how a subnet mask splits an IP address into network and host parts, what /24 means, and how to count usable hosts.How-toHow to Read Binary and Convert It to Decimal and HexLearn how binary place values work and convert binary to decimal and hexadecimal by hand, with clear worked examples.ExplainerHow Unix File Permissions Work: Reading 755 Without GuessingRead is 4, write is 2, execute is 1, and each of the three digits describes a different party. The part most explanations get wrong is what the execute bit does on a directory — it grants traversal, not the right to run anything.